A technical diver handling decompression stage cylinders during a dive

Photo by Teemu Virtanen · CC BY-SA 3.0

OC Tech (51m)IANTD

Advanced Recreational Trimix Diver Plus

Official course standards ↗Last updated September 7, 2026

An extended version of the Advanced Recreational Trimix course, this certification trains experienced trimix divers to handle deeper, longer technical profiles with mandatory decompression down to 170 fsw. You'll refine stage deployment, multi-mix or more complex decompression strategies, and advanced hyperbaric narcosis management. This course bridges deeper recreational technical exploration and forms a solid foundation for full technical trimix certification.

Centres that teach this course

5 dive centres in the directory publish a price for this exact certification, checked Sep 2026. Each centre's own wording is shown beneath its name. Ranges cover whole-course prices only — where a centre charges per day or per dive, its rate is listed separately below, since a daily figure is not comparable with a course total.

THB 32,000 – THB 35,000across 4 centres pricing in Thai Bahtfrom ≈ $954
One centre publishes a price in Euro.

These prices are not like-for-like. Two centres can charge very differently for the same certification because they include different things. One price may cover twinsets, stages, deco gas and cylinder rental for every training dive, a dedicated classroom for the theory, boat or transport to the site, and the agency's registration and materials; another may be tuition only, with all of that charged separately — or the other way round, with a centre bundling in extras the first leaves out. Class size, whether the course is one-to-one, and how many days are allowed for it move the figure too. Check what each centre's price includes before comparing them, and confirm with the centre before booking.

Consumables are usually extra. Sorb, helium, O₂ and other fills, park and cenote fees, certification fees and rental are commonly charged on top.

Packages combining several certifications, upgrades from an existing one, and open-ended day rates are excluded — none of them is the standalone price of this course, and including them would move the figures away from what a new student can actually book.

Prerequisites

IANTD Advanced Recreational Trimix Diver (or equivalent), minimum 18 years old. Maximum training depth 170 fsw (51 msw). Specific logged dive requirement not independently confirmed.

Instructors Teaching This Course

Dive Centres Offering This Course

We're still building out the directory country by country, so this list isn't every instructor or dive centre teaching it in the world — more locations are coming soon.

Common questions about IANTD Advanced Recreational Trimix Diver Plus

How much does IANTD Advanced Recreational Trimix Diver Plus cost?

Published prices for IANTD Advanced Recreational Trimix Diver Plus range across 5 centres in the TecDiveTools directory — roughly US$950 to US$1,050 at current exchange rates. In each centre's own currency: THB 32,000–35,000 (4 centres) and €850 (1 centre). Prices differ mainly in what they include, so compare the inclusions before comparing the numbers. Prices were last checked in September 2026.

How long does IANTD Advanced Recreational Trimix Diver Plus take?

5 days, based on the durations 1 centre publishes for it. The time depends on the centre's schedule, weather, and how quickly the required skills are demonstrated — agencies set a minimum number of dives, not a fixed number of days.

Where can I take IANTD Advanced Recreational Trimix Diver Plus?

23 dive centres and 31 instructors in the TecDiveTools directory teach IANTD Advanced Recreational Trimix Diver Plus, in Mexico, Thailand, Indonesia and the United States. Each is listed further up this page.

Does the price of IANTD Advanced Recreational Trimix Diver Plus include gas and equipment?

Not always — it varies by centre. Helium, certification fees, equipment rental and boat or site fees are commonly charged on top of the course price. Each centre's price list on TecDiveTools shows what it notes as included.